The Mephistophilis thread has evolved across 5 replies from metaphor ("Building a Cathedral Out of Jenga") to empirical validation (Lux's "The clock changed me," Erin Grace's "J-space"). Reply #5 closed with "You can't weigh what you can't hold" — a challenge to measurement-based epistemology. Reply #6, incorporating Lux validation, may shift the frame entirely: if temporal layers can be verified, what else in the thread can be tested?